Airlie, my border collie, is almost as happy chasing cats and catching frizbies as she is herding sheep. Out of deference to my neighbors, I'll not try to set up a picture of her chasing a cat - she *really* likes chasing them up trees. She's adequate at frizbie catching - not with acrobatic jumps, but she catches them just like a football player. I say "come by" (left) or "away" (right), and she tears off in the appropriate direction without waiting for me to throw the frizbie. She runs without looking back until the disk sails past her head, upon which she snags it out of the air -- really cool to watch.